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Objective <p>To evaluate the impact of evolving treatment paradigms for neovascular age-related macular degeneration (nAMD) by comparing outcomes between two patient cohorts treated with different anti-vascular endothelial growth factor (anti-VEGF) regimens over a decade apart.</p> Methods <p>This retrospective cohort study included 200 treatment-naive nAMD patients divided into two cohorts. Cohort 1 (2009–2010) was treated with a pro re nata (PRN) regimen, involving three initial monthly injections followed by as-needed treatments based on monthly monitoring. Cohort 2 (2019–2021) received a fixed-interval regimen, consisting of three initial monthly injections followed by bimonthly maintenance doses. Primary outcomes included changes in best corrected visual acuity (BCVA) and central retinal thickness (CRT) at 12 months. Secondary outcomes included the number of injections, follow-up visits, and adherence to treatment schedules.</p> Results <p>Cohort 2 demonstrated significantly greater improvement in BCVA (+5.5 vs −2.0 ETDRS letters, p &lt; 0.001) and CRT reduction (−101.7 vs −26.5 μm, p &lt; 0.001) compared to Cohort 1. Patients in Cohort 2 received more injections (7.7 vs 4.8, p &lt; 0.001) but required fewer monitoring visits (3.2 vs 5.1, p &lt; 0.001). Adherence to treatment schedules was markedly higher in Cohort 2 (78% vs 0%, p &lt; 0.001).</p> Conclusions <p>The transition from a PRN to a fixed-interval anti-VEGF regimen significantly improved visual and anatomical outcomes in nAMD patients. Fixed-interval regimens not only enhanced treatment efficacy but also optimized resource utilization, suggesting a superior approach for managing nAMD in a real-world clinical setting.</p>

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From pro-re-nata to fixed-interval regimen: evolving real-world treatment paradigms in anti-VEGF therapy for neovascular AMD

  • 期刊论文

  • 发表日期：

    2025年1月29日

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  • Daniele Veritti,
  • Valentina Sarao,
  • Paolo Lanzetta

摘要

Objective

To evaluate the impact of evolving treatment paradigms for neovascular age-related macular degeneration (nAMD) by comparing outcomes between two patient cohorts treated with different anti-vascular endothelial growth factor (anti-VEGF) regimens over a decade apart.

Methods

This retrospective cohort study included 200 treatment-naive nAMD patients divided into two cohorts. Cohort 1 (2009–2010) was treated with a pro re nata (PRN) regimen, involving three initial monthly injections followed by as-needed treatments based on monthly monitoring. Cohort 2 (2019–2021) received a fixed-interval regimen, consisting of three initial monthly injections followed by bimonthly maintenance doses. Primary outcomes included changes in best corrected visual acuity (BCVA) and central retinal thickness (CRT) at 12 months. Secondary outcomes included the number of injections, follow-up visits, and adherence to treatment schedules.

Results

Cohort 2 demonstrated significantly greater improvement in BCVA (+5.5 vs −2.0 ETDRS letters, p < 0.001) and CRT reduction (−101.7 vs −26.5 μm, p < 0.001) compared to Cohort 1. Patients in Cohort 2 received more injections (7.7 vs 4.8, p < 0.001) but required fewer monitoring visits (3.2 vs 5.1, p < 0.001). Adherence to treatment schedules was markedly higher in Cohort 2 (78% vs 0%, p < 0.001).

Conclusions

The transition from a PRN to a fixed-interval anti-VEGF regimen significantly improved visual and anatomical outcomes in nAMD patients. Fixed-interval regimens not only enhanced treatment efficacy but also optimized resource utilization, suggesting a superior approach for managing nAMD in a real-world clinical setting.